001/*
002  GRANITE DATA SERVICES
003  Copyright (C) 2011 GRANITE DATA SERVICES S.A.S.
004
005  This file is part of Granite Data Services.
006
007  Granite Data Services is free software; you can redistribute it and/or modify
008  it under the terms of the GNU Library General Public License as published by
009  the Free Software Foundation; either version 2 of the License, or (at your
010  option) any later version.
011
012  Granite Data Services is distributed in the hope that it will be useful, but
013  WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
014  FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
015  for more details.
016
017  You should have received a copy of the GNU Library General Public License
018  along with this library; if not, see <http://www.gnu.org/licenses/>.
019 */
020
021package org.granite.tide.ejb;
022
023import java.util.Map;
024
025import javax.naming.InitialContext;
026
027import org.granite.config.flex.Destination;
028import org.granite.context.GraniteContext;
029import org.granite.messaging.service.ExtendedServiceExceptionHandler;
030import org.granite.messaging.service.ServiceException;
031import org.granite.messaging.service.ServiceFactory;
032import org.granite.messaging.service.ServiceInvoker;
033import org.granite.scan.ScannedItemHandler;
034import org.granite.tide.TideServiceInvoker;
035import org.granite.tide.data.PersistenceExceptionConverter;
036import org.granite.util.XMap;
037
038import flex.messaging.messages.RemotingMessage;
039
040
041/**
042 * @author William DRAI
043 */
044public class EjbServiceFactory extends ServiceFactory {
045    
046    public static final String ENTITY_MANAGER_FACTORY_JNDI_NAME = "entity-manager-factory-jndi-name";
047    public static final String ENTITY_MANAGER_JNDI_NAME = "entity-manager-jndi-name";
048
049    private String lookup = null;
050    private InitialContext initialContext = null;
051
052    public static ScannedItemHandler getScannedItemHandler() {
053        return EjbScannedItemHandler.instance(true);
054    }
055    
056    public String getLookup() {
057        return lookup;
058    }
059    
060    public void setInitialContext(InitialContext ic) {
061        this.initialContext = ic;
062    }
063
064
065    @Override
066    public void configure(XMap properties) throws ServiceException {
067        String sServiceExceptionHandler = properties.get("service-exception-handler");
068        if (sServiceExceptionHandler == null) {
069            XMap props = new XMap(properties);
070            props.put("service-exception-handler", ExtendedServiceExceptionHandler.class.getName());
071            super.configure(props);
072        }
073        else
074            super.configure(properties);
075        
076        GraniteContext graniteContext = GraniteContext.getCurrentInstance();
077        graniteContext.getGraniteConfig().registerExceptionConverter(PersistenceExceptionConverter.class);
078        graniteContext.getGraniteConfig().registerExceptionConverter(EJBAccessExceptionConverter.class);
079        
080        this.lookup = properties.get("lookup");
081    }
082
083
084    @Override
085    public ServiceInvoker<?> getServiceInstance(RemotingMessage request) throws ServiceException {
086        String messageType = request.getClass().getName();
087        String destinationId = request.getDestination();
088
089        GraniteContext context = GraniteContext.getCurrentInstance();
090        Map<String, Object> cache = context.getSessionMap();
091        Destination destination = context.getServicesConfig().findDestinationById(messageType, destinationId);
092        String key = TideServiceInvoker.class.getName() + '.' + destinationId;
093
094        return getServiceInvoker(cache, destination, key);
095    }
096
097    private ServiceInvoker<?> getServiceInvoker(Map<String, Object> cache, Destination destination, String key) {
098        GraniteContext context = GraniteContext.getCurrentInstance();
099        synchronized (context.getSessionLock()) {
100            ServiceInvoker<?> invoker = (ServiceInvoker<?>)cache.get(key);
101            if (invoker == null) {
102                String lookup = getLookup();
103
104                if (destination.getProperties().containsKey("lookup"))
105                    lookup = destination.getProperties().get("lookup");
106                
107                EjbServiceContext tideContext = new EjbServiceContext(lookup, initialContext); 
108                
109                if (destination.getProperties().containsKey(ENTITY_MANAGER_FACTORY_JNDI_NAME)) {
110                    tideContext.setEntityManagerFactoryJndiName(destination.getProperties().get(ENTITY_MANAGER_FACTORY_JNDI_NAME));
111                } 
112                else if (destination.getProperties().containsKey(ENTITY_MANAGER_JNDI_NAME)) {
113                    tideContext.setEntityManagerJndiName(destination.getProperties().get(ENTITY_MANAGER_JNDI_NAME));
114                }
115                
116                invoker = new TideServiceInvoker<EjbServiceFactory>(destination, this, tideContext);
117                cache.put(key, invoker);
118            }
119            return invoker;
120        }
121    }
122}